Exhaust trap



April 10, 1928.

A. J. CULP EXHAUST TRAP Filed May 23. 1925 3 Sheets-Sheet 1 April 10, 1928. 1,666,005

' A. J. CULP EXHAUST TRAP Filed Ma 23. 1925 3 Sheets-Sheet 2 3 7.2 7- 9 zaa April 10, 1928.

A. J. CULP EXHAUST TRAP Filed May 23, 1925 3 Sheets-Sheet 3 I, PT In grvuemifo'c arrangement of parts hereinafter fully Patented Apr. 10, 1928.

UNITED STATES ARTHUR J'. GULF, OF CLANTON, ALABAMA.

EXHAUST TRAP.

Application filed May 23, 1925. Serial No. 32,365.

r This invention relates to the exhaust tra forming the subject matter of m U. Letters Patent 1,514,441, granted ovember 4, 1924, and has for one of its objects to improve and simplify the general construcrtion of said trap to the end that its cost of manufacture will be reduced to the minimum.

The foregoing and other ob'ects are attained by the construction, com ination 851d escribed and claimed, and illustrated in the accompanying drawings, wherein:

Figure ,1 is a sectional view taken on a vertical plane extending longitudinally and centrally through an exhaust trap constructed in accordance with the present invention and adapted for use in connection with a single cylinder hydro-carbon engine,

Figure 2 is a transverse sectional view of the exhaust trap, the section being taken on the plane indicated by the line 2-2 of Figure, 1

Fighre 3 is a detail view in elevation of the valve mechanism of the exhaust trap,

Figure 4 is a sectional view taken on a vertical plane extending longitudinally and centrally through the exhaust tra adapted for use in connection witha mu tiple cylinder hydro-carbon engine.

Figure 5 is a view illustrating the appli cation of the multiple trap to a hydro-carbon engine, and 7 Figure 6 is a detail sectional view taken on the plane indicated by the line 66 of Fi re 5.

orresponding and like parts are referred to in the following description, and designated in the several views of the accompanying drawings, by similar reference characters.

The exhaust trap comprisesa cylinder or drum 1 made of sheet metal and provided at its ends with outwardly directed annular flanges 2 and 3. Ahead plate 4 is secured to the flange 2 by rivets 5, and a head plate 6 is secured to the flange 3 by rivets 7, the former plate being provided with a central opening 8 and the latter with a central opening 9. An intake tube 10 passes into the cylinder 1 through the opening 8,

and has its outer end screw threaded as indicated at 11 inorder topermit it to be coupled to a pipe leading from the exhaust port of a single cylinder hydro-carbon engine. The intake tube 10 is secured'in place by. a cast iron collar 12 with which it has threaded connection and which is attached to the head plate 4 by cap screws 13.

A bafile tube 14 having a closed end 15 and an open end 16, is arranged within the cylinder 1 about the intake tube 10 with its end wall 15 in spaced relation to the inner or dischargeend of said intake tube. The baflle' tube 14.is provided at its open end 16 with a conical extension 17 provided with openings 18 and/constituting a bafile plate. A-hollow cylindrical element 19 extends from the larger end of the bafile plate 17 and contacts with the inner surface of the cylinder 1.' The outer end of the cylindrical extension '19 contacts with the head plate 4, and said extension constitutes a support for the baffle tube 14 and bafile plate 17 and is secured to the cylinder 1 b rivets 20. The battle tube 14 and bafile p ate 17 separate the c linder 1 into chambers 21, 22, and 23. T e chamber 21 is the smallest,

' the chamber 23 the lar est, and the chamber 22 is larger than t e chamber 21 and smaller than the chamber 23. The chambers 21 and 22 are in communication through the open end 16 of the battle tube 14, and the chambers 22 and 23 are in communication through the openings 18. The exhaust passing out of the discharge end of the intake tu e 10 passes first into the chamber 21, then into the chamber 22 and thence into the chamber 23 from whence it passes out of the trap through the opening 9.

A plate 24 is secured to the head plate 6 by cap screws 25, and is provided with an opening registering with the opening 9 and having its wall tapered to rovide a valve seat 26. A valve 27 provided with a stem 28 (passing through an opening 29 in a guide an support 30, is yieldin ly held against the seat 26 by a spring 31 which is mounted on the stem 28 between the guide and support 30 and a nut 32 carried b guide and support 30 is of skeleton formation, and is secured to the valve plate 24 and extends through the opening 9 into the cylinder 1. A dome 33 is secured over the valve 27 by the cap screws 25, and is adapted to protect the valve from dust and other foreign matter. The dome 33 is provided with a nipple 34 to permit the connection thereto of a pipe by which the exhaust can be carried at any desired distance from the trap.

The trap shown in Figure 1 is adapted the stem. The

for use in connection with a single cylinder hydro-carbon engme, and to permit it to be connected to a suitable su port the head plates 4 and 6 are provide with lugs 35 arranged at right angles with res ect'thereto and apertured for the passage 0 la screws 36 or other suitable attaching e ements. While the trap is shown as adapted to be supported in a horizontal position, it is to be understood that it may be supported in a vertical position and (provided with a blow out pipe as suggeste by the hereinbefore identified patent. When the trap is supported in a vertical position, the attaching lugs 35 are omitted.

As shown in Figure 4 two or more of the traps may be assembled and connected together for use in connection with multiple cylinder hydro-carbon engines, and the assembled traps may be supported in a horizontal or vertical position. When two or more of the traps are to be used together, the head plates 4 and 6 are omitted, and in place thereof are employed head plates 4 and 6 of sufficient size to cover the ends of the assembled cylinders 1. The dome 33 is also omitted, and in lieu thereof an exhaust manifold 37 provided with a discharge port 38 is employed. The head plate 4 is secured to the flanges 2 by rivets 5, and the head plate 6 and exhaust manifold 37 are secured to the flanges 3 by bolts 7, The exhaust manifold 37 extends over the valves 27, and the exhaust from the cylinders 1 asses through the openings 9 into the mani: old. As shown in Figures 5 and 6, the respective units of the multiple trap are adapted to be connected to t e res ective exhaust ports 38 of a multiple cylin er hydro-carbon engine 39 by tubes 40 and chambers 41. The chambers 41 are provided with hollow extensions 42 which enter the exhaust .ports 39, and said chambers are secured in place by clamps 43. The tubes 40 are connected to the intake tubes 10 by couplings 44 and to the chambers 41 out of alinement with the exhaust ports 38 by couplings 45. The head plates 4* and 6 are provided with lugs 46 to permit the trapto be supported in advance of the cooling fan 47 so as to cause the rapid cooling of the exhaust for the purpose hereinbefore set forth. If desired the chambers 41 may he cast together or made separately as shown in the drawings.

the method of operation of the exhaust trap will be readily apparent to those sln'lled in the art to which the same appertains.

While I have described the principle of o eration of the exhaust trap, together with t e structure which I now consider to be the best embodiment thereof, I desire to have it understood that the structure shown is merely illustrative, and that such changes may be made when desired as are within the scope of the invention as claimed.

What is claimed is:- 1. An exhaust trap comprising a cylinder rovided at its ends with outwardlydirected anges, first and second head plates secured to the flanges and the first head plate having a'discharge port, an imperforate battle tube of uniform diameter throughout and arranged within the cylinder with its ends spaced from the head plates, the end of the bafie tube adjacent the first head plate heing closed and the end adjacent the second head plate being fully open, a conical bafie plate provided with openings and extending from the open end of the bafiie tube in the direction of the second head late and cylinder and terminating short 0 the second head plate, a cylindrical attaching flange extending from the conical baiiie plate to the second head plate and contacting with the inner side of the cylinder, attaching elements engaging the cylinder and flange, and an exhaust tu e secured to and extendin inwardly and outwardl beyond the secon head late and exten ing into the bafiie tube with its discharge end arranged in close proximity to the closed end of the bafiie tube.

ARTHUR J. CULP. 

